Made a change to the way ext2sim determines if a FET type is an n or

p device;  this was previously dependent only on the first character
of the extracted device model name.  Since the tech file has control
over what the device layer names are but not the extracted model
names, the device layer type name is used as a backup way to determine
if the type is n or p, if that cannot be determined from the extracted
model name.

ext2spice/ext2spice.c

@@ -242,6 +242,7 @@ CmdExtToSpice(w, cmd)
     short s_rclass, d_rclass, sub_rclass;
     char *devname;
     char *subname;
+    TileType devtype;
     int idx, idx2;
     globalList *glist = NULL;
 
@@ -739,7 +740,8 @@ runexttospice:
     /* command)								 */
 
     idx = 0;
-    while (ExtGetDevInfo(idx++, &devname, &s_rclass, &d_rclass, &sub_rclass, &subname))
+    while (ExtGetDevInfo(idx++, &devname, &devtype, &s_rclass, &d_rclass,
+		&sub_rclass, &subname))
     {
 	if (idx == MAXDEVTYPES)
 	{